A wunderkammer hidden on the top floor of the Hartford statehouse.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

This shrine to the patron saint of Alaska sits on a small tidal island and was built from the land’s own beach stones.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

The ruins of this Alaska gold mine form a gorgeous ghost town.

One toy collector's legacy of hundreds of unique items includes the most diverse display of northern indigenous dolls.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

A very classy 1920s-era bar right in Grand Central Station.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Elevated freight railway turned wildly successful urban park.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.